Math, asked by koshalnirwan7, 10 months ago

35) How many diagonals are there in a closed figure having 19 sides?
a) 282
b) 128
C) 152
d) 192

Answers

Answered by neeraj1251

1

Answer:

152

Step-by-step explanation:

No. Of Diagonals= n(n-1)/2 - n

=19(19-1)/2 - 19

= 19×18/2 - 19

= 171-19

= 152

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